Flask / Jinja Website Restructure & Frontend Redesign

I run a UK network engineering company called Sprintwave Ltd.

The business has developed into two distinct sides:

Sprintwave Enterprise
Enterprise network consultancy and professional services for large organisations. Cisco, Aruba, Cisco ISE, ClearPass, enterprise wireless, switching, firewalls, SDA, automation and large infrastructure migrations.

Sprintwave Connect
WiFi, Starlink, network cabling, CCTV, small business networking, events, rural connectivity and holiday park networks.

The existing website is built using Python Flask, Jinja2, HTML and CSS.

I do not want it rebuilt from scratch or moved to WordPress. I will handle hosting/deployment to Render myself. I need someone to edit and restructure the existing codebase.

Objective

The current website is heavily focused on local WiFi, Starlink and installation work, but most of our revenue comes from enterprise network consultancy.

I want to reposition the website around two clearly separated divisions:

SPRINTWAVE | ENTERPRISE
Enterprise Network Engineering & Automation

SPRINTWAVE | CONNECT
WiFi, Starlink & Specialist Connectivity

Both remain part of Sprintwave Ltd.

Required work

Create a new neutral Sprintwave homepage at / which introduces the company and directs visitors towards Enterprise or Connect.

Create a redesigned Enterprise experience with its own:

Header/navigation
Footer
Styling
Landing page
Service structure
Case study structure

Enterprise should look like a serious UK network consultancy / professional services company.

Create a Connect landing page and Connect-specific navigation/style.

Reuse existing pages

A large amount of content already exists and should be reused.

Enterprise pages include:

Network Consulting
Cisco ISE
Aruba ClearPass
Cisco SDA
Cisco Wireless
Cisco Firepower
Aruba Switching
Firewall Consulting
Wireless Surveys
Enterprise case studies
Technical/network automation blog content

Connect pages include:

Starlink
WiFi Installation
UniFi
Network Cabling
CCTV
Rural Broadband
Backup Internet
Small Business Networking
Holiday Park WiFi
Event WiFi
Farm/Rural Estate networks
Warehouse/Factory connectivity
Local case studies

The existing Web Design section will be removed.

Flask / Jinja structure

Ideally I would like separate base templates, for example:

corporate_base.html
enterprise_base.html
connect_base.html

Existing pages can then inherit the appropriate template.

For example:

/cisco-ise can keep the same URL but use the Enterprise design/navigation.

/starlink can keep the same URL but use the Connect design/navigation.

I want to preserve existing URLs wherever possible because several local pages already generate Google enquiries.

SEO

Please be comfortable with:

Preserving existing URLs
Page titles/meta descriptions
Canonical URLs
Internal linking
Sitemap structure
Basic technical SEO
Responsive/mobile performance

Any significant URL changes must be agreed with me first.

Design direction

I want a clean, modern, technical B2B design.

The Enterprise side should look like a specialist network engineering consultancy, not:

Generic IT support
Residential installer
Generic template site
Microsoft 365/helpdesk MSP

Enterprise should focus on engineering capability, technologies, project delivery, case studies and technical expertise.

Connect can remain more enquiry/conversion focused.

Both sides should clearly belong to the same Sprintwave brand.

Skills required
Python Flask
Jinja2
HTML
CSS
JavaScript
Responsive web design
Git
Comfortable working with an existing codebase

This is mainly a frontend/template restructuring project, not backend development or server administration.

I will handle deployment to Render myself.

Please include
Examples of Flask/Jinja websites you have worked on
Examples of B2B/technology websites you have designed
Confirmation you are happy editing an existing Flask project
Your suggested approach
Estimated cost

Please do not propose WordPress or a complete rebuild.

The aim is to improve and restructure the existing Flask website while reusing as much of the current content and code as possible.